Checking Communication With ECC Control Module: Verification

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

HINT: After carrying out the repair, check that the fault has been remedied as follows.

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Connecting Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Connecting Control Unit

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off
Reconnect connectors, reinstall components.
ECC control module connected
Ignition on.
Volvo Scan Tool (ST) connected to data link connector (DLC).
Try to establish communication with the ECC system by reading off the communication status with the power unit.

Fig 4: Connecting Scan Tool To Data Link Connector
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 5: Identifying Scan Tool
Courtesy of VOLVO CARS OF NORTH AMERICA.

Was communication established with the ECC system?

YES
OKAY: Troubleshooting has been completed.
NO
Refer to Information